Four men were injured Wednesday in a stabbing near Covent Garden, a busy tourist area in London, according to the Metropolitan Police.A 47-year-old woman was arrested and a pair of scissors was taken from the scene, police said, adding that the incident is believed to be mental health related. The victims -- men ages 34, 39, 42 and 52 -- were taken to a hospital in unknown conditions, police said.Popular ReadsWhat we know about the In-N-Out Burger shooting suspectAug 3, 9:13 PMAriana Grande exits West End show amid 'public scrutiny'Aug 2, 6:50 PMTrump says new Iran deal is 'imminent,' negotiations resume MondayAug 2, 6:48 PMThis is a developing story. Please check back for updates.